Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NPP
TLE Epoch: 2023 9 14.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 09/14/2023   08:33:56   (  -0.00,-104.71) (   0.42,-106.59)  214.41                80
 09/15/2023   08:12:31   (  -0.00,-104.70) (  -0.60,-102.05)  302.09                80
 09/16/2023   20:34:25   (   0.00,-104.68) (  -0.62,-107.35)  304.49                80
 09/17/2023   20:18:20   (   0.00,-104.68) (   0.40,-102.82)  212.29                80
 09/19/2023   08:40:06   (  -0.00,-104.71) (   0.77,-108.09)  385.50                80
 09/20/2023   08:18:40   (  -0.00,-104.70) (  -0.26,-103.56)  130.76                80
 09/21/2023   20:40:35   (  -0.00,-104.67) (  -0.94,-108.85)  476.82                80
 09/22/2023   20:24:29   (  -0.00,-104.67) (   0.09,-104.32)   39.50                80
 09/25/2023   08:27:29   (   0.01,-104.68) (   0.10,-105.05)   42.49                80
 09/26/2023   08:06:04   (   0.01,-104.67) (  -0.94,-100.52)  473.59                80
 09/27/2023   20:27:57   (  -0.02,-104.64) (  -0.30,-105.81)  133.99                80